Fueling system



T. BOSSARD FUELING SYSTEM Filed Aug. 14, 1929 Oct. 27, 1931.

Patented `0.a. 27,*1931- mnnonoan Besseren; or`v LAKECITY', Urramnssielvon "ro .ansnlineinimmfnnag FUELING SYSTEM Y i Aappriicarimi filed AugustY 14,1923; serial 35..;535314;

I relates to .automobiles g and more :particularly to i `*fueling systems Y for; drawing the fuel wto the motor and has .for its object torprovide anew and efficientfuel-Il ing System which Will ydravvthe fuel .to the;A

f motor lwithout: the use-fof vacuum tank, pump,

' orlyother devices` Vsystems. l A furtherobject is' to provide a new fueling system for motors whichJ will draw the. fuel to the ymotor from the tank bva ysystem"k Y reted condition.` t

' inginy invention igure 1 isa longitudinal used in i the present f day ofzboosters which boostersincrease the 'suce Vtion, of thefintake manifold vof the engine to'y such Aan extent as to draw'the fuel and fuel' vaporsfrom the` tankdireetlyto the intakeV manifold in lay sl'ibstantiallyy complete Carlow,y A' further yobject* is aifueling systemfwhich when installed in an automO-- few .moving partsffevv;y operations for the driver, andwhich will completely'carburet the fuel before itis introduced into the motor, thereby giving greater mileage, more smooth running ofthe'motor and quicker ,and evgener acceleration of the Inotn'iy .y f f t These ob 'ects accom lish. With-y the."device l illustrated Y in Nthe accompanying drawings in A .which similark numerals and letters of refer-v ence indicate like parts' throughout the sevverallfviec'ws as describedin thef-'sp'ecii'cation l forminga part of this vapplication and Y pointfefdout in the appended claims.'V In the drawings in vwhich th'ebest and mostpreferredmanner of-build- X'rertical'section of the device with parts cut away. Figure 2 ,is ay sidefelevation'of'the air 'regulating'valve Y Figure 3 is a section of the lupper-air Vand fuel` mixing'po'rtion. of

the Venturi vvnozzle or jet. `Figurelisa sec.-

` tion :ofthe lower air inlet, end of said jet.`r

Figure' 5 isl a plan view ofthe booster casting `used' in the fuel supply tank.A Y

ofmy Vdevice as The vearbfuretion pk'ii'tion1"-` l Bisfprovidedwith r-afla'nge 1'v on the top side,`

inta-'ke manifold (of an ,'engine. V'Theportion beef win provide a Systemtwhieawi11-, havel I1 have [shown:l

the lower end constricted at 3 to form a valve i seatl 4. Thelowerjend ofthe casting which` formsy the 'bodyl has ay cylindrical air inlet. 5 formed thereonvvith theA bore of'the inlet 5 vati-right angles tothe boreof the body Bj.

The lowerrend 6 ofthe castingvfis closed and, on one side thereof I provide aninjectory casingy 7. vW-it'hinfthe constricted portion loff u 60 the l'body i By Ii lform f a coneentricy casting '8l which casting is secured tofthe body f von thefside. -adja'cent. lthe; injector casting, and? thev bottom Kendr ofv` the bodyB isbored and threaded-.at 9 to kreceive a'closure plug I10. a y, t

Throughx the opening 9l I :then bore out the' center-Hof zthecastingf SAf-intodiferent sized. v

bore@ 13 being carriedentithrough the top of the casting. 'Into lthe bore 12 lI `press la' fuelandar controlj et;15 Whichgjetlis yformed,

With-a frusto-con-ic'al boss"16. ontlie lower end thereof f and ,:With 4 the boreif17 thereof end 18.21 This pj et .is more clearly ,shown vin AFigure 3?of thedrawingsand thefupper por, tion 19 of the-jet'is made o f smaller diameter than the `Alower portioni'20g-5The portion 20.

is thatzfportionlwhiehisl pressedntothe end f of the bore 12 :and .the lupper .portion v19 y.ex

tends vup f through to rthe;y top end .of the castt' ing. Iii-the .bore-11,1 then'press an air'jet 21.Whicha'ir jet 21-:has`the'lower end ofthe boregthereof" curved outv'vardlyatt21a to the outer periphery ofv thef jet. The bore 22' of the said jetis ofsmallerdiameter than :the smallend of the tapered'bore ofthe jet 15;

The top end'28 of the-saidvjet21"isformed bores, thef-lowervbore 11..being larger;:they A. neXtig12 beingslightly smaller and the small y f i taperedV front the.conical?,v end :16 ito the topv if .frusto-conical and extends up intoxthecast- 1 Y l tweenvvithithe'peak of the triangular shaped space merging into the space Ifthen" borek th'ebottom end "of the 'injector orfacc'elerator Wellcasti-ng Z andfext'endj'thebore 25a therein to n ear' theftopl thereof' andldiagonallyf from the bottom of the said bore I bore ports 26 and 27 with the port 26'conneoting the bore a with the annular groove 25 in the bore l2 of the casting 8, and the port 27 is connected with an inlet bore 28 in a boss 29 formed on the side of the casing 7. A closure plug- 3()` isserevved into theebiottomaend of the; bore 25a to'retainall fuel therein.1

Y Through the top end of the casing 7WI bore a small hole 31 ,land within the'Y bore 25a I provide a' spring and.`an.finejector...plate piston`33 and which'pl'ate 33'h'a`s a'guid'e'shaft' 34 on the top side thereof. The saidshaft- 34 extends up through the hole 3linto the open air thereabove. Within the borei13gofthe lcasting 8 and between the inner walls thereof andtfhe outer'wal-lsof'the upper portionl 18f offtlie' j et {1'55 I* provide al sliding cyli'ndfricaly valve member 35: The) said valvey 35 is1 formed? "with aheadf 36 onI the top end the body andfthe lower cylindrical? stem 36afof the valveiscarried inl the' annular space'x between? thef Walls ofil thex borel` 13 and? the outerfwiallsoftliejet 15;- This-provides slow: moving jet1va.lvefor the air vcushion fo'rmedf int the 1 space 137i thereunder andi will' act'l bothto; retardi the' upward?? motionf and? also' the" downward niotionf of:4 the valve' to? a slight'degree. A choke valve 37 Zi-is'pivoterd? withinthefair'inleti 5t'ocontroliI the how'` of airtherethrou'ghlfor startingfthe motor. In

valvef 38 -pivoted on?. a shaft' 39? an'dl having one outer edgeI '40thereofffa'dapted close saidfport4l' is :bored tlirough'afboss- 42 :formed `onthe side ofthe body Bandac'ontrol needle valvel43 is screwed intfoxthe outer-endZ of thel bone tolcontrol the i'lovvfofiiuel therethrough. A vertical'bore44 isalso through the'fbos's 42" andE af pipe 45 isfconnectedf' t'othe; lower open*rend'thereo` which pipeL-is toE carry the necessary'l fuel'ffr; idling the' mot-'or and' which vpipe y:is 4carrimil -b'aclrl and l downlint'o' the' fuel supplytzamlr: 'llheuto'p'1 endEy oii the*y bore 442 is closed? a oontrol plu`g-46 and.;` anair porti 47 is boredi atian anglefthroughn the'- top endof theebossjoiningthe bore 44 a-boveztlie' level` of? theifbor'e'f. oh thef-portv415: and the' plug. 46 is adaptedito partially' orfentirely closeI the port 1 4.7 by7 sorevvingatheA plug 46; down into the borel 442 suioient distanue:n This* isthe means off' providing airl air? controi for the air port. 471 y l f Y Y Totheehore'of thebossf29f'l1f connectie; pipe 48f'whi'ch `pipe48leads=barili to an'v elhow'49- and another pipe=50`fexndsdownithrouglran inlet opening. into' theX fuell supply' tank! Througlr-theitop side'- ofthetank Iiprovide acylindfri'calasocket 511x and'etohthe socket; 51` I connect a1i1elbow5ifaon anf" airfpilpel 52, this air pipe: 52lead's to'nearftheoarburet-ion portionrof device andafpipe1-53 isplacedfthere-V around.withJ ther/other' endiof@` the' pipe 53 surroundingI the;- joining I1-ut of the pipev 48 through the bottom ofthetankfin athreadedi-,

holem57-.and`thevbottom endy 580i the casting 56 is closedby a plug 592 The said casting 56`is provided with two spaced apart screen carrying -flanges 60 and a screen 60a is secured' therearou'nd, A port 6l connects the bore of. the casting with thescreened area surrounding the" medial f portion oftlie casting. Tothel bottom en d ofthepipe'50 I'se curefahoostermember-62 andthe endoffthe idling pipe-45T is /within i' andfc arried through:

the pipe"A 50 ton the pointijustl depending intov 'l the:boreoftheldoosteiG2: Thesaid bo'ostei" is' made'ofa Casting having ai tapered'4- liorev 64 through the top end thereof. The" ex treme end' of the taperedfholeorbore'isy Within a frusto#coni-cal.I boss 67 on the innerface' ofthe bore`66in" the lower enditliereof. A

- cylindricalplug 68' isy pressed into the `hore 66 andthe lower edges y of'itheb'ore' thereof'ia're' tapered'out'wardly toform taperedholeQ; The space' left betweenv the end Vof' the plug 68and'th'e endof the boss 67 'forinsaln' annular groove 70 therebetween. and p'ort'71 connects'the groove 7 `0 vwith tliefport'l" thereby providing 'means' of'v allo-wing'- fuel to.' enter ther groove from thetank. The lowerendj of the casting .63; is formed withthree" spacerv lugs173; ,74 and -75 with the' hore or port 71.1 passing through the lug 7 v5"`to connectitwith the port 61" andi with the otherlugsl'to space' Vthe booster castingk froml th'e ,sideA walls of the casting 56, so th'atjair'f-rom the Jiife.5'5t andthejpipes 53and' 52; may' pa'ssy'the'rethrough and up through the booster-through the bore ofthe pliig' 68.

rllhe operation ofmy device is as follows: WhenA the motor is rotated suction is createdand the throttle is openedzto start lthe motor the suction. ofthe motor drawing up through the carburetionportion B` invcreasedbv the passageV ofair through thejets and the Y force .thus augmented 'draws the airv from the Ychamber in the ca sing7 andlt'hrougli the.- pipe 48and the-pipe 50 from the booster 62: .air is drawn through the pipes 54; 53, 52

and'55 Vand through theplug6'8 inthe booster 621 The suction isagai-n augmented'hy the booster and fuel is drawn throughthe ports 71 and 6l up through4 the booster Where it is mixed with soine4 air andl dra-wn i-n af'gase- VousV stagev throughthe pipes 5`O and L48 into the 1 injector chamber andthencethrough the port A26 yinto the annular groove- 25 andl thence up through theV iet l.1 5,' intro-andl through thebodyfl B to .the engine.. When start-ingthe inotor cient fuel in the injectory chamber-'to give a free flow of fuelforeinstant starting and. as'. the motor accelerates,fthe plate 33, is drawn suddenly down forcing all the fuel and vaporA in the casinginto the jet whenceit is carried s to the engine. If the driver wishes to suddenlyl accelerate his motor the injector acts similarly fgiving a supply of instantaneous combustible fuel for quick lpick up. As the 'igeaaveo within saidtank,toallow fuel toffiowinto Y n said booster to draw air into the bottom'endy thereofin'creasing the force of suction drawf v ing fuel-into the lead line andrnto the, jet; i

naturel f motor is accelerated the suction` ofthe motor 1 y draws the compensating valve 35 upwardly /allowing air. to vpass in unmixedfquantity through lthe air inlet 5 and the weight of the valve will compensate allowing only'the cor-v v rect amount "ofair to passtherethrough.

The idling ofthe motorris controlled by the :y throttle valve 38'having theedge thereof open f 'f -l f y l 'or close the port 41 depending on the. amount of fuelneeded for idling `and thea-ir needed;`

for idling passes throughthe r 'port 147 intol the 'port 41. The needle valve 43 may be usedito give the kcorrect mixture of fuel 4 Y through the port 41 and the fuel'for idling *isv ,25' p of the booster 62 in the tankA. It will, be

drawn through the pipe 45 from thetop end obvious that the motorcan be shut olf completely by closing the throttle valve sulicient to entirely close the vport 41 by the edgey ofl said valve. A, Having thus described sire to secure by Letters Patent andclairn:

invention Idef 1.jIn a fuel system forautomobiles the y combination of "a cylindrical body portiony .n

having'V a valve seat formed therein; an air u cushioned valve carried thereinland adapted I i, to close said'sea't; a concentric casting within v said casing; a jet carriedinsaid casting; hav: f

ing the bore thereof tapered `from the top to' f the bottom; another jetspaced therefromV` within said casting forming an annularchamf ber therebetween, saidchamber'beingin open connection with the fuel 'supply-line; aspring controlledinjector in said supply line adapted to bel actuatedfby sudden increased suction from the motor whenaccelerated; V,means to introduce idling fuvelrsintov said Veasing ad jacent thethrottle valve; la throttlevalve to l' control the entire system; and a booster imyso mersed in fuel inv the fuelV supply tank to vaporize the `fuel and increase the suctionv through the lead lineconneoted therewith. e

a valve seat formedv thereinand a perforated compensating air cushioned valve adaptedA to close or open the' seat commensuratewith the 2. In a fueling system forautomobiles the j l vcombination of a cylindrical casing r.having suction passingftherethrough a Venturi type of fuel jet carried medially in said casing.

within said valve; a-booster of the yVenturiv type carried in the fuel supply tank a lead i line vconnecting said A booster withsaid fuel line lsaid idlingpipe leading into said casing @man idling pipe carriearwahin Saidieadf jatthepointiofthrottle controlfandmeans f v flntestimony whereoflhave aflxed sig-"f K g l y eo Y' i. lloc 

